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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis BULETIN OSEANOGRAFI MARINA POSITRON Journal of Marine Research Jurnal Sains dan Teknologi Majalah Geografi Indonesia Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Omni-Akuatika Juvenil: Jurnal Ilmiah Kelautan dan Perikanan Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Mestaka: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmu Kelautan Lesser Sunda
Ashari Wicaksono
Universitas Trunojoyo Madura
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mechanical Engineering Physics Social Sciences Transportation Other

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Turbidity Characteristics of The Waters on The Padelegan Beach, Pademawu District, Pamekasan Regency, East Java Onie Wiwid Jayanthi; Ary Giri Dwi Kartika; Ashari Wicaksono; Amalia Hariyanti; Dwi Syadina Putri; Putri Ayu Rahmadani
Journal Omni-Akuatika Vol 18 (2022): Omni-Akuatika Special Issue 4th Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2022.18.S1.978

Abstract

Padelegan Beach is one of the beaches used for tourism and seaweed cultivation activities, which is located in Pademawu District, Pamekasan Regency. The distribution of water turbidity plays an important role in the success of seaweed cultivation activities and salt ponds along the Jumiang coast. The purpose of this research is to know the condition of turbidities distribution in Jumiang waters. The sampling method used the purposive sampling method with the location of nine sampling stations. The location of the turbidity measurement is based on thereare near the coast (points 1, 2, 3), beaches (points 4, 5, 6), and the high seas (7, 8, 9). Turbidity was measured using the Lutron TU-2016 Turbidity Meter. The results show that the turbidity distribution at station points near the coast is higher in value than at high sea station points. The highest turbidity value is 29,82 NTU in the coastal area, while the lowest is 4,35 NTU the offshore. The turbidity value in Jumiang coastal waters shows a value below the threshold for turbidity that is intended for cultivation activities.Keywords: characteristics, turbidity, The Padelegan Beach
Analysis of Sulfate (SO4) Concentration in Bittern as Raw Material for Magnesium Sulfate (MgSO4) Uswatun Hasanah; Nike I. Nuzula; Ashari Wicaksono; Makhfud Efendy; Wiwit S. W. Pratiwi
Journal Omni-Akuatika Vol 18 (2022): Omni-Akuatika Special Issue 4th Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2022.18.S1.979

Abstract

The investigation on traditional salt production had developed in the characterization of Bittern. Bittern is the dense residual liquor with specific gravity ≥ 1.28 gr/cm3 obtained after precipitation and harvesting of NaCl salt from seawater. In this research, the measurment of sulfate in the bittern was carried out. Sulfate is one of the raw materials for MgSO4. The determination of sulfate concentration is using a turbidimetric method according to SNI 6989 20:2009 using a spectrophotometer at a wavelength of 420 nm.  In this process the Sulfate in an acidic environment reacts with barium chloride (BaCl2) to form barium sulfate (BaSO4) crystals. The light absorbed by the barium sulfate suspension is measured with a photometer and the sulfate content is calculated by comparing the readings with the calibration curve. The results of the analysis showed that at 31o Baume the sulfate content is 40.0 g/L, at 32o Baume the sulfate content is 42.6 g/L, at 33o Baume the sulfate content is 42.8 g/L. The sulfate concentration in the bittern showed a linear increase with increasing water concentration. The sulphate content of bittern with 31oBe levels has an average value of 40.028 g/L, at 32oBe levels the average sulphate content is 42.599 g/L and at 33oBe levels it is 42,825 g/L. Keywords: Bittern, Sulfate, oBe
APLIKASI DATA CITRA SATELIT NOAA-17 UNTUK MENGUKUR VARIASI SUHU PERMUKAAN LAUT JAWA Ashari Wicaksono; Firman Farid Muhsoni; Achmad Fachruddin Syah
Jurnal Kelautan Vol 3, No 1: April (2010)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v3i1.849

Abstract

Satelit NOAA-17 adalah salah satu seri satelit yang dimiliki oleh NOAA (National Oceanic and Atmospheric Administration) Amerika dan juga merupakan satelit lingkungan dan cuaca yang memiliki resolusi temporal yang tinggi. Seri dari satelit NOAA telah mencapai seri ke 19 yang dapat diartikan bahwa satelit ini telah beroperasi cukup lama. Satelit ini telah banyak digunakan oleh para peneliti untuk mengetahui Tingkat Kehijauan Vegetasi (NDVI), Suhu Permukaan Laut (SPL),  Hotspot. Pada penggunaannya untuk mengetahui SPL, satelit NOAA memiliki band 4, band 5 yang merupakan band Thermal Infrared dan merupakan band yang sensitif terhadap perubahan suhu di laut. Pengolahan untuk mengukur variasi SPL yang menggunakan band 4 dan band 5 yang telah dikalibrasi, hasil dari kalibrasi tersebut yang kemudian dimasukkan kedalam algoritma Mc Millin dan Crosby, sehingga didapatkan nilai suhu permukaan laut dari setiap data citra satelit NOAA-17 Tanggal 15 Juni 2009; 6 Juli 2009; 1 Agustus 2009 yang diolah. Kata Kunci : Data Citra NOAA-17, Suhu Permukaan Laut, Algoritma Mc Millin dan Crosby
ANALISA KADAR FOSFAT SEBAGAI PARAMETER CEMARAN BAHAN BAKU GARAM PADA BADAN SUNGAI, MUARA, DAN PANTAI DI DESA PADELAGAN KABUPATEN PAMEKASAN Putri Ayu Rahmadani; Ashari Wicaksono; Onie Wiwid Jayanthi; Mahfud Effendy; Nike Ika Nuzula; Ary Giri Dwi Kartika; Moch. Syaifullah; Dwi Syadina Putri; Amalia Hariyanti
Juvenil Vol 2, No 4 (2021)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v2i4.12835

Abstract

ABSTRAKKualitas air laut seperti mineral dan cemaran sangat berpengaruh terhadap hasil produksi garam. Salah satu indikator penurunan kualitas air laut adalah fosfat. Tujuan dari penelitian ini adalah untuk mengetahui hubungan fosfat terhadap kualitas bahan baku garam di Desa Padelegan. Penelitian ini menggunakan metode Purposive Sampling berdasarkan zonasi perairan, dimana sampel air diambil dan di analisa merujuk pada SNI 06-6989.31-2005. Kandungan fosfat tertinggi diketahui berada pada muara sungai dan pantai sebesar 0.1686745 mg/L dan terendah di badan sungai sebesar. 0.12851 mg/L. Hal ini dapat diakibatkan karena daerah pantai dan muara sungai merupakan daerah yang berdekatan dengan sumber cemaran fosfat. Berdasarkan PP RI No.22 Tahun 2021 tentang baku mutu air konsumsi kandungan fosfat di perairan Desa Padelegan masih di bawah ambang batas dan melebihi ambang batas untuk kehidupan biota. . Kandungan fosfat yang tinggi berpengaruh terhadap kondisi fisik garam seperti warna yang tidak putih, serta memberikan cita rasa yang menyimpang (pahit) setelah proses produksi. Kata Kunci: Garam, Zonasi, Fosfat, Bahan Baku, Kualitas Air  ABSTRACTThe quality of sea water such as minerals and contamination greatly affects the results of salt production. One indicator of declining sea water quality is phosphate. The purpose of this study was to determine the relationship of phosphate to the quality of salt raw materials in Padelegan Village. This research uses purposive sampling method based on water zoning, where water samples are taken and analyzed according to SNI 06-6989.31-2005. The highest phosphate content is known to be in river mouths and beaches of 0.1686745 mg/L and the lowest is in river bodies of . 0.12851 mg/L. This can be caused because coastal areas and estuary are areas that are close to sources of phosphate contamination. Based on PP RI No. 22 of 2021 concerning quality standards for consumption water, the phosphate content in the waters of Padelegan Village is still below the threshold and exceeding the threshold for biota life. . The high phosphate content affects the physical condition of the salt such as the color is not white, and gives a distorted (bitter) taste after the production process.Keywords: Salt, Zoning, Phosphate, Raw Material, Water Quality
SEBARAN LOGAM BERAT TIMBAL (Pb) PADA AIR LAUT SEBAGAI BAHAN BAKU GARAM DI PERAIRAN PADELEGAN PAMEKASAN Amalia Hariyanti; Onie Wiwid Jayanthi; Ashari Wicaksono; Ary Giri Dwi Kartika; Makhfud Efendy; Dwi Syadina Putri; Putri Ayu Rahmadani
Juvenil Vol 2, No 4 (2021)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v2i4.12828

Abstract

ABSTRAKProduksi garam di desa Padelegan menggunakan metode tradisional yaitu memanfaatkan sinar matahari dalam proses penguapan serta menggunakan bahan baku air laut. Lokasi pengambilan bahan baku berada dekat dengan daratan, hal ini dapat berpotensi bahan baku tercemar oleh limbah pembuangan aktivitas manusia. Limbah daratan berkontribusi dalam pencemaran logam berat, salah satunya timbal (Pb). Tujuan dari penelitian ini yaitu menganalisa kandungan logam berat timbal (Pb) pada 9 titik sampling yang mewakili daerah pantai, transisi antara pantai dengan laut lepas, dan area laut lepas. Metode yang digunakan dalam penelitian ini adalah deskriptif, sedangkan penentuan lokasi penelitian menggunakan metode purposive sampling. Sampel diuji kandungan logam timbal (Pb) menggunakan AAS (Atomic Absorbtion Spectrophotometry). Hasil penelitian menunjukkan kandungan logam berat timbal (Pb) di perairan Padelegan melebihi ambang batas baku mutu air laut yang ditetapkan Keputusan menteri Lingkungan Hidup No 51 tahun 2004, kandungan Pb tertinggi pada titik 7 sebesar 1,0815 mg/l sedangkan kandungan Pb terendah berada pada titik  5 yakni 0,6332 mg/l.Kata Kunci: Bahan baku, garam, timbal, pamekasan, AASABSTRACTSalt production in Padelegan uses traditional methods, utilizing sunlight in the evaporation process and using sea water as raw materials. The location for taking raw materials is close to the mainland, this can have the potential for raw materials to be polluted by waste disposal of human activities. Land waste contributes to heavy metal pollution, one of which is lead (Pb). The purpose of this study was to analyze the heavy metal content of lead (Pb) at 9 sampling points representing the coastal area, the transition between the coast and the high seas, and the high seas area. The method used in this research is descriptive, while the determination of the research location uses purposive sampling method. Samples were tested for lead (Pb) metal content using AAS (Atomic Absorbtion Spectrophotometry). The results showed that the heavy metal content of lead (Pb) in the waters of Padelegan exceeded the seawater quality standard set by the Minister of Environment Decree No. 51 of 2004, the highest Pb content at point 7 was 1.0815 mg/l, while the lowest Pb content was at point 5 is 0.6332 mg/l.Keywords: Raw materials, salt, lead, pamekasan, AAS
DISTRIBUSI NITRAT DI PERAIRAN PADELEGAN SEBAGAI BAHAN BAKU GARAM YANG BERKUALITAS Dwi Syadina putri; Onie Wiwid Jayanthi; Ashari Wicaksono; Ary Giri Dwi Kartika; Makhfud Effendy; Amalia Hariyanti; Putri Ayu Rahmadani
Juvenil Vol 2, No 4 (2021)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v2i4.12822

Abstract

ABSTRAKPulau Madura merupakan pulau yang identik sebagai pulau penghasil garam. Produksi garam memerlukan bahan baku garam berupa air laut yang berkualitas sehingga mampu mendapatkan hasil produk garam yang memiliki mutu tinggi, dapat ditinjau dari parameter kimia yaitu nitrat. Penelitian ini bertujuan untuk mengetahui kandungan nitrat yang sesuai untuk bahan baku produksi garam.   Metode yang dilakukan dalam penelitian adalah metode deskriptif dan untuk pengambilan sampel menggunakan metode purposive sampling dengan menggunakan alat water sampling vertical. Pengambilan data diambil pada lokasi pesisir, pantai, dan laut lepas. Rata-rata kandungan nitrat pada lokasi penelitian adalah 0.840067 mg/L. Kandungan nitrat tertinggi berada titik 8 yaitu dengan nilai 1.3307 mg/L. Kandungan nitrat tersebut di atas ambang batas baku mutu untuk biota di perairan sehingga kualitas perairan tersebut kurang sesuai untuk dijadikan bahan baku garam yang berkualitas.Kata kunci: Garam, Kualitas Perairan, Nitrat, Bahan Baku Garam ABSTRACT Madura Island is an island that is identical as a salt-producing island. Salt production requires salt as raw material in the form of quality seawater so as to be able to obtain high quality salt products, which can be viewed from the chemical parameter, namely nitrate. This study aims to determine the nitrate content at different depths. The method used in this study is a descriptive method and for sampling using a purposive sampling method using a vertical water sampling device. Data collection was taken at coastal, coastal, and offshore. The average nitrate content at the study site was 0.840067 mg/L. The highest nitrate content is at point 8 of 1.3307 mg/L.. The nitrate content is above the quality standard threshold for biota in the waters so that the quality of the waters is not suitable to be used as raw material for quality salt. Keywords: Salt, Water Quality, Nitrate, Salt Raw Material
Model SLA Dan ADT Di Perairan Indonesia Selama Badai Siklon Surigae Ashari Wicaksono; Nike Ika Nuzula
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 2, Nomor 2, Edisi Juli 2021
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/zl.v2i2.13682

Abstract

Tropical cyclone does not directly pass through Indonesia. However, the impact of tropical cyclones such as high waves, strong winds can have an impact on coastal areas. Surigae tropical cyclones is one of the which reported to have formed in the Pacific Ocean adjacent to northern Sulawesi strait. This study was conducted by analysis SLA and ADT data to obtain models of dynamical of sea level and anomalies during tropical cyclone Surigae across. Results of models showed that from the analysis of SLA data obtained average 0.1 to 0.2 meters, and for ADT obtained average of 0.9 to 1.1 meter. Models of SLA and ADT showed phenomenon of eddies currents at eastern Philippine bordering the Sulawesi strait. SLA and ADT data provided of sea level change of the tropical cyclone, and usable to ocean current and mesoscale eddies detection.
Pengolahan Data Arus Laut menggunakan Bahasa Program R Diah Pitaloka; Onie Wiwid Jayanthi; Ary Giri Dwi Kartika; Ashari Wicaksono; Muh. Syaifullah; Irsyadatul Fikriah
Buletin Oseanografi Marina Vol 12, No 2 (2023): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v12i2.49511

Abstract

Penggunaan bahasa pemrograman merupakan salah satu dari penerapan kemudahan teknologi, melalui pemrosesan, pengolah, serta analisis data ,berupa output data yang jelas dan akurat secara cepat dan relevan. Bahasa program R dinilai cukup baik sebagai alat simulasi model, baik melalui kemampuan kalkulasi dan manipulasi data, maupun pada kemampuan peragaan grafik dan visualisasi data. Tujuan dari penelitian ini ialah mengetahui tahapan pengolahan data arus menggunakan bahasa program R. Keunggulan bahasa pemrograman tersebut ialah bersifat open source dan dapat digunakan untuk mengolah big data. Pengambilan data arus menggunakan instrumen Acoustic Doppler Current Profiler (ADCP) dilakukan secara insitu menggunakan metode eulerian. Perekaman data dilakukan selama 3 hari di kawasan Perairan Pademawu, Pamekasan, Madura. Data diolah menggunakan bahasa pemrograman R versi 4.1.2. dengan memanfaatkan software R-Studio.  Pengolahan data tersebut akan menghasilkan grafik dan stick plot arah dan kecepatan komponen arus U (Timur-Barat) dan V (Selatan-Utara). Visualisasi tersebut menginterpretasikan karakteristik arus di lokasi penelitian. Kesimpulan dari penelitian ini ialah tahapan pengolahan data arus menggunakan bahasa program R diantaranya yaitu pre-pengolahan data, pengolahan data, dan post-pengolahan data. Pada tahapan post-processing data, dihasilkan 442 records dan 21 variable dataset sebagai bahan visualisasi stick plot dan grafik garis U-V yang dapat menginterpretasikan karakteristik arus laut di kawasan penelitian.   Using a programming language is one of the applications of technological convenience, through data processing, processing, and analysis, in the form of clear and accurate data output that is fast and relevant. The R programming language is considered quite good as a model simulation tool, both through its calculation and data manipulation capabilities, as well as in its graphical display capabilities and data visualization. The aim of this research is to know the stages of data processing using the R programming language. The advantage of this programming language is that it is open-source and can be used to process big data. Current data collection using the Acoustic Doppler Current Profiler (ADCP) instrument was carried out in situ using the Eulerian method. Data recording was carried out for 3 days in the Pademawu Waters, Pamekasan, Madura. Data is processed using the R programming language version 4.1.2. it is using R-Studio software. Processing the data will produce graphs and stick plots of the direction and velocity of the U (East-West) and V (South-North) current components. The visualization interprets the characteristics of the currents at the research location. This study concludes that the stages of processing data flow using the R programming language include data pre-processing, data processing, and post-data processing. At the data post-processing stage, 442 records and 21 dataset variables were produced as visualization materials for stick plots and U - V line graphs that can interpret the characteristics of ocean currents in the research area.
Deteksi Total Bakteri Escherichia coli Pada Sedimen Laut Perairan Desa Padelegan Sebagai Indikator Cemaran Mikrobiologis Wisata Pantai The Legend-Pamekasan Asih, Eka Nurhema Ning; Ramadhanti, Annisa; Wicaksono, Ashari; Dewi, Kartika; Astutik, Sri
Journal of Marine Research Vol 13, No 1 (2024): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v13i1.37063

Abstract

Escherichia coli tergolong bakteri fecal coliform yang merupakan kelompok bakteri patogen sebagai indikator pencemaran mikrobiologi air. Tingginya jumlah bakteri tersebut di perairan Desa Padelegan diduga disebabkan oleh tekanan pencemaran dalam rumah tangga. Penelitian ini dilakukan untuk mengetahui kualitas bakteriologis khususnya bakteri Escherichia coli yang terakumulasi pada sedimen perairan Desa Padelegan terkait dengan keselamatan operasional kawasan wisata pantai The Legend di sekitar lokasi. Metode yang digunakan untuk analisis total bakteri Escherichia coli mengacu pada SNI 2332.1:2015. Hasil penelitian menunjukkan nilai total bakteri Escherichia coli pada 7 stasiun berkisar antara <3,0 MPN/g - 93 MPN/g. Total bakteri Escherichia coli pada seluruh stasiun tersebut berada di bawah ambang batas untuk keperluan wisata bahari sesuai Keputusan Menteri Negara Lingkungan Hidup No. 51 Tahun 2004 yaitu <200 MPN/g dengan toleransi <10%. Nilai analisis total bakteri Escherichia coli menunjukkan bahwa kualitas perairan khususnya sedimen di sekitar Desa Padelegan berada pada kategori masih baik dan aman untuk kegiatan wisata bahari. Escherichia coli is classified as Fecal coliform bacteria which is a group of pathogenic bacteria as an indicator of water microbiological contamination. The high total number of these bacteria in the waters of Padelegan Village is thought to have come from the pressure of domestic contamination. This study was conducted to determine the bacteriological quality, especially Escherichia coli bacteria that accumulate in the sediments of the waters of Padelegan Village related to the safety of operating beach tourism areas The Legend around the location. The method used for the total analysis of Escherichia coli bacteria refers to SNI 2332.1:2015. The results showed that the total value of Escherichia coli bacteria at 7 stations ranged from <3.0 MPN/g - 93 MPN/g. The total Escherichia coli bacteria at all of these stations were below the threshold for marine tourism purposes according to the Decree of the State Minister for the Environment No. 51 of 2004, namely <200 MPN/g with a tolerance of <10%. The value of the total analysis of Escherichia coli bacteria shows that the quality of the waters, especially the sediments around the village of Padelegan, is in the category that is still good and safe for marine tourism activities.
Karakteristik Elevasi Muka Air Laut di Selat Madura Ashari, Sofyana; Wicaksono, Ashari; Nuzula, Nike Ika; Siswanto, Aries Dwi
Majalah Geografi Indonesia Vol 38, No 2 (2024): Majalah Geografi Indonesia
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mgi.94468

Abstract

Abstrak. Penelitian ini bertujuan untuk memahami karakteristik elevasi muka air laut di Selat Madura dengan memanfaatkan data altimetri dan divalidasi menggunakan data tide gauges. Data pengukuran diambil pada bulan Agustus 2022. Metode analisa menggunakan statistik dan FFT untuk memperoleh nilai komponen pasang surut dan elevasi air laut rata-rata. Hasil penelitian menunjukkan variasi nilai SSH di wilayah perairan Indonesia berkisar 0.4 - 0.8 m dan ± 0.6 m di Selat Madura, sedangkan hasil analisa tide gauge menunjukkan 1.2 – 1.4 m. Ada perbedaan signifikan dan ditunjukkan oleh nilai RMSE pada stasiun Surabaya 0.81; Kalianget 0.98; dan Probolinggo 0.94. Data tide gauges diolah lebih lanjut menggunakan metode admiralty sehingga diperoleh 15 komponen harmonik pasang surut, terdiri atas komponen diurnal [M1, K1, O1, P1, Q1, J1, OO1], semidiurnal [M2, S2, K2, N2, L2, 2N2], dan shallow water [M4 dan MS4], sehingga diketahui dominasi komponen diurnal (P1 dan K1) di stasiun pengukuran Surabaya dan Kalianget maupun komponen semidiurnal (N2 dan L2) di stasiun pengukuran Probolinggo. Hasil analisis FFT menunjukkan tipe pasang surut di Selat Madura tergolong tipe pasang surut campuran condong ganda/semidiurnal dengan nilai elevasi muka air laut tidak jauh berbeda pada tiga lokasi pengukuran. Nilai HHWL tertinggi di stasiun Probolinggo (3.3455 m), nilai LLWL terendah di stasiun Kalianget (0.5493 m). Nilai MSL masing-masing stasiun Surabaya, stasiun Kalianget, dan stasiun Probolinggo secara berturut-turut 1.4262 m; 1.2616 m; dan 1.8541 m. Perbedaan nilai MSL sesuai hasil analisa data altimetri dan tide gauge berkaitan dengan lokasi penelitian yang berada di wilayah pantai. Diharapkan bahwa penggunaan metode FFT dapat digunakan sebagai salah satu alternatif dalam mengetahui karakteristik pasang surut dari stasiun pengukuran yang tersebar di Selat Madura.Abstract This study aims to understand the characteristics of sea level elevation in the Madura Strait by tide gauges and SSH data at three stations around the Madura Strait. Measurement was taken in August 2022. The analysis used statistics and FFT approach. The variation of SSH in Indonesian waters ranges from 0.4 - 0.8 m and ± 0.6 m in the Madura Strait, while the results of tide gauge analysis show 1.2 - 1.4 m. There is a significant difference and is shown by the RMSE value at Surabaya station 0.81; Kalianget 0.98; and Probolinggo 0.94. The tide gauge data were also further processed using the admiralty method to obtain 15 tidal harmonic components, consisting of diurnal component [M1, K1, O1, P1, Q1, J1, OO1], semidiurnal [M2, S2, K2, N2, L2, 2N2], and shallow water [M4, and MS4], so that the dominance of diurnal components (P1 and K1) at Surabaya and Kalianget measurement stations and semidiurnal components (N2 and L2) at Probolinggo measurement station is known. Meanwhile, the results of the FFT analysis show that the tidal type in the Madura Strait is classified as a mixed double-semidiurnal tidal type with sea level elevation values not much different at the three measurement locations. The highest HHWL value at Probolinggo station (3.3455 m), the lowest LLWL value at Kalianget station (0.5493 m). The MSL values of Surabaya station, Kalianget station, and Probolinggo station are 1.4262 m; 1.2616 m; and 1.8541 m, respectively. The difference in MSL values between altimetry and tide gauge data is caused by the location which is a coastal area, where SSH altimetry data is loss data in the area. It is expected thatt the use of the FFT method can be used as an alternative in knowing the tidal characteristics of measurement stations spread in the Madura Straits.Submitted: 2024-02-28 Revisions:  2024-09-11 Accepted: 2024-09-25 Published: 2024-09-25
Co-Authors Achmad Fachruddin Syah Adi Purwandana Agustiadi, Teguh Amalia Hariyanti Amalia Hariyanti Amalia Hariyanti Aries Dwi Siswanto Ary Giri Dwi Kartika Ashari, Sofyana Asih, Eka Nurhema Ning Asih, Eka Nurrahema Ning Bayu Priyono, Bayu Diah Pitaloka Dwi Syadina Putri Dwi Syadina putri Dwi Syadina Putri Edi Kusmanto Firman Farid Muhsoni Hariyanti, Amalia Irsyadatul Fikriah Kartika Dewi Mahfud Effendy Makhfud Efendy Makhfud Efendy Makhfud Efendy, Makhfud Makhfud Effendy Moch. Syaifullah Muh. Syaifullah Nuzula, Nike Ika Onie Wiwid Jayanthi Onie Wiwid Jayanthi Onie Wiwid Jayanthi Onie Wiwid Jayanthi Putri Ayu Rahmadani Putri Ayu Rahmadani Putri Ayu Rahmadani Putri, Dwi Syadina Rahmadani, Putri Ayu Ramadhanti, Annisa Reni Wijayanti Rizqiyeh, St. Sahabuddin, Munawar Setiawati, Sulastiana Sofiya, Lely SRI ASTUTIK Surinati, Dewi Syaifullah, Moch Triwibowo, Hariyanto Uswatun Hasanah Utari, Putri Adia Wahyudi Prasetyo Widiyawati, Devita Wiwit S. W. Pratiwi Wiwit Sri Werdi Pratiwi, Wiwit Sri Werdi Zainul Hidayah Zheng, Wang